Notable People who have Wikipedia pages in German but not in English and who played an important role in Holocaust history among other things (update ongoing):
Dav. Friedman(n) a.k.a. David Friedmann was born in 1893 in Mährisch Ostrau, Austria, now Ostrava, Czech Republic. He ventured from this industrial city to Berlin in 1911. He learned the techniques of copper etching and lithography from Hermann Struck and was awarded a scholarship to study art with Lovis Corinth. https://www.jewishgen.org/AustriaCzech/wall-of-fame/friedmann.htmlDavid Friedmann (Friedman), Austrian, Czech, American painter and Holocaust survivor
Wikipedia in German: https://de.wikipedia.org/wiki/David_Friedmann_(Künstler)
(* 20. Dezember 1893 in Mährisch-Ostrau, Österreich-Ungarn; † 27. Februar 1980 in St. Louis, Missouri) war ein österreichisch-tschechisch-amerikanischer Künstler und ein Überlebender des Holocaust.
VIAF https://viaf.org/viaf/40433639/
Attention, not to be confused with
Zwei Reiter am Strand aus dem Schwabinger Kunstfund (Sammlung David Friedmann, Breslau)
David Friedmann, German Jewish businessman and art collector -(1857-1942)
who also has a Wikipedia page in German but not in English
https://de.wikipedia.org/wiki/David_Friedmann_(Unternehmer)
David Friedmann (24. Januar 1857 in Rawitsch – 15. Februar 1942 in Breslau) war ein deutscher Unternehmer und Kunstsammler.
(see: https://www.dw.com/en/david-toren-why-wait-so-long/a-18051950 )
****
Wikidata Sparql Queries that might be useful:
Holocaust Victims in Wikidata that do not have English Language Wikipedia Pages
https://w.wiki/vRJ